Float for flushing-tanks.



No. 835,089. PATENTED NOV. .6, 1906.

1 f C. WILLMS. v

FLOAT FOR FLUSHNG TANKS.

APPLICATION FILED O0T.2l. 19051 zv SHEETS-snm 1.

' INVENTOR (zg/1132.5* ZW BY Hls WrToRNEYs. V

No. 835,089. PATENTBD Nov. 6, 1906. o. WlILLMs. FLOAT POP. PLUSHINGTANKS.

APPLIGATIN FILED 0CT.V21. '1905.

2 sHgETssHBET 2 (Q l BY Hrs n'rToRNEvs; Y,

. UNITED STATES; PATENT centen.

' CHARLES WILLMStOF BALTIMORE, MARYLAND.

y i FLpoAT l Foa -FLusHlNG-TANKYS.

. .Lg v,tra 835,089.'

nl f'Tb all `may concern:

Beit known that I, CHARLES WILLMs, a

ycitizen of the United States, residing in theV fcityof Baltimore and.State of '5,hav'e invented certainv new and *provernents in Floats for,y j ff'whic'h the following is aspeciiication.

Maryland,

j `Heretolore floats 'for flushing-tanks havef usuallybeenmade of metal,such as copger,

' e .byf dies or other suh-' idf'ubutlg'fsuclif iloats 'are often Kthe'corfosxv'e action of al I fstanc'es-,found 1n kthe native watersofmany soon destroy n .parts of the, country.. Glass iloats have to asmall vextentbeen substituted for thoseI made 5Qofcopperlor other metalbut such floats are liable to be broken in handling or to crack. and

leak `when subjected to variations in tempen ,..le'obj y iqfiiioatgwhichshall vcombine the advantages of the metalfioat with those made ofglass, but

`sha'l'lnot have any offtheir objections.

Q'llily invention consists in providing a metal float 'covered withenamel in a novel way,

Sllf-tightvybut it is extremely difficult to obtain `an'absolute1ywater-tight feint by spinning, soldering, or the usual met ods. Hence itis ffdifiicultto roperly ickle a metal float made inthe usua waywitlibut allowing some of the epicklingfliguid toV enter the oat' andcor- .""'-.r0de-iti f' Accordingltofmy'invention I form the two'ectionsfof 't e float in such manner that they fr y ay be joinedWithout the usual spinning or d3,5 compressing operation` to unite them,and I f [firsty treat the sections before they are brought :together inaV ickling-bath to prepare them "forthe Bname ing process. l f Iplrefeto enamel the float on both the im sidefand outside, although it is notessential hltthe' inside of the float should be enmel'd. 'When'fthensideandoutside of the at are Venameled and after the sections a',"ei'beenfpickled, Ifcoat the inside "thereof 55 with anenameling comosition which luxes r fuses at a relativelyr 'gh temperature. I

Specification of Letters Patent. Appia-asm nea cada zi, 1.905. v saaiNo. 283,792.

useful Im- Flushing-Tanks, ot

ect df my invention is ,to provide al potected from the action of sub-`ch tend to corrode' it, and which;

sections which are: :Joined by a connection designed to be waterenamel.and on an enlarged scale, illustrating one that may be ein- Patentes Nw.e; 190e.

l. then join the sections and coat them on the outside with the samekind of enamelin Icomposition. Then the float is baked or ed to .producea hard enamel interior and exterior coating. i

. In order to insure that the enamel coating is perfect or. to coverupany.defects in the first coating, I ap )ly to the outside of the floatcoating o enameling composition, fusing or iiuxing at a lowertemperature than that iirst employed, and the iioat thus covred is againfired until the enamel is pro erly formed. In this way a Water-tig tfloat is obtained, which is not affected by alkalies, acids, lor othersubstances contained in the water, and even should any corrosivesubstance enter the float or be inclosed therein by any accident it willnotl Y In firing the float after the sections are joined the air Withinit is expanded, and were there no other vent or escape the air wouldleak past the joint'of thev sections and leave air-holes, which wouldremain in the iinished article and the iioat would not be Water-tight-In order to avoid this, I provide one of the float-sections With aspeciallymade ventor escape 4for the air. During the ring rocess the airpasses out from the float t rough this opening, and When the iring iscompleted this hole is closed by a plug.

orstopper of anysuitable kind.

There are other features oi my invention which are illustrated in theaccom drawings and which will be hereina' ter spe? ciically described.

Fi ure l shows in section the two parts of the fIoat after a coat ofenameling-paste has been applied to the inside thereof. Fig. 2

anyin g y shows the two sections joined. by a slip-'oint Fig. 3` showsthe joined sections covere with an enamelin paste on both the inside andoutside, in w )ich condition the iioat is baked or fired. Fig. 4 'showshow the outside of the TOO float is covered with the second coat of Fig.5 is a detail view'in section form of'vent or air-escape ployed. Fier. 6illustrates another lform, while a third modification is shown in Figs.'1 to 4. 7 illustrates how the loat may be supporte while being bakedwhen the vent is on that side of the float op .osite the one containing,the socket-piece or' the Vvalverod. Fig. 8 shows how the loatissupported Whenthe vent is formed in said socket-piece.

Figs. 9 and 10 are detail views of that end of` the supportingfrod4which is connected with the iloat during firing. Figs.l 11 and `12 showgeneral ofthe usual construction; "but, unlike other floats, theypreferably have a conncc tion with each other, which does not requirespinning :or lsvvagin to uniteV them.

In Figs. 1 to 4 have shown a slip-joint. The diameter of the section Bnear the joint is greater than that of the section A, and when thesections are brought together the parts will appear as shown in Fig. 2,leaving an annular recess or gutter for a purpose hereinafter described.Instead of such a'slip-joint-I may employ screw-threads C, (indicated inFig. 11,) and one of the sections Amay be formed with an annular -langea to limit the movement of the'other section, and the other section isformed with a right-angle bend b,

l whichA overlaps the lange a, forming an an nular-recess-or gutter-.This is for the vpurpose of taking a better hold on the enamelingcomposition, or I may employ a slipjoint like that illustrated in Fig.12, the iiange 'a and the bend b in this ii'gure corresponding j `withthe parts similarly lettered in Fig. 1 1.

Thesocket-piece D of well-known construction is secured to the sectionB, and a vent is preferably provided in the other section. In Figs. 1 to4 -this vent is produced by attaching an eyelet E tothe section A. Theeyolet, it avill beobserved, is provided Witha screwthreaded openingcommunicating with the interior of the float Instead, however, ofprovidinga vent in ythis Way I lmayvernploy the construction shown inFig. 6, w-herean eyelet E is shown, but is not screw-threaded.

In this'case the eyelet-hole may bev closed by' any suitable compositionor bya'suitable stopper of rubber or other material. Another way ofproducing the vent isillustrated in Fig; 5, in which the threaded socket-cZ forl the valve-rod F connnunicateswith a 'passage leading:tothe-interior of the float.' In Fig. 5 this passage-is shown as beingclosed by -a screw -G Abut this may beeasilyremoved. It iis not in placeduring the firing operation, but is inserted afterward, as -hereinafter=described.' j

The iloatesections A and B after the socket-piece D and the-eyelet E(Whenlfoneis used) are applied are subjected to a pickling-.bath torender'them perfectly clean and suitable to receive the en'amelingcomposition. After thisthe inside of the sectionsarer preferablycoated.- thoroughly with an enamcling-paste which fluxes at a relativelythigh temperature.

ieceWit-h` the section B vand around the `eyeet the composition 'isapplied with-.s Ucial care order to insure against any-possibility(if-leakage. After this the two sections :are

At the joint ofthe socket-l joined in the manner indicated 'in Fig. 2and are then coated on the-outside with an enameling composition of thekind used to coat the inside. When thus coated, the parts will appear asindicated in Fig. 3, and 1t Will be observed that the enamelingcomposition completelycovers the exterior ofthe float, more beingapplied in the gutter-.fc and around the socket-piece D and eyelet Ethan at other parts. In this condi-tion the floatiis ready foriininfg,and itis preferably" supportedl onf amd-1H, such|asilli1stratcdin `7, there'd:'beingrconnected'-with-a base and beingscrew-t-hreadedatitsupper endl to connect With thesocket-piece D. Thelbase H supportingthe lfloat maythen-be placed in a baking-cven and -the float maybereduntil the enamcling coating onl=both1the=inside and outsid-earethoroughly baked. -Duringthis process of baking theY airwvithin .thevfloatexpands; butit has @a *ready-'vent through the'eyelet E, andthejointat-is not injured. When the vent is :mad-eithrough the socket-pieceD, the float is supported in the-mannerindicated- Ain Fig. '8; In thisvcase it will be observed thatthe rod VLhas apart overhanging the floatand the overhanging ende-of the rod vis screw-threaded vandfiiattened ormutilated, so that whileaiirm con nection ma bemade' betweenthe-socketpiece and t iesu portingerod ventopenings will be left, asindicated-,i for the'esca i eo the expanding air. It-willI be observeIthat-.in both.cases-the'vents are arranged at 'the top of the float,because the heated air Itend-s `to `ascend, and it is thus allowedfreely to `esca e.

If the iloat shown Ain Fig. 8 werereversed and supported on a rod, suchas indicated at Hin Fig.. 7, thebent yopening would beat :the bottom andthere would be n tendency Ifor the expanding air to'- rise and'escapevarou-nd the joint Thefnstcoatingzo enamel-com posi-tion isbaked-inthe mannerf just ydcscribed, and after this `I :apply lanothercoating' ofl enamel-ingepast@ but one' which `fuses -or viluxesfat .ailo'wer i temperature than vthat first employed in order that when -fredthe first coat will vnote-melt. This second coatin as indicated in Fig.4, is made-t0 cover t eentireou-tsideofv thefloat, being appliedmcre'plentifully at the joint `ofthe-sec tions which are specially mad-eto receive it and around the socket-piece-D andseyelt E. When thuscoated, the float is again tired 'in the manner illustrated in Fig.. 7or Fi ,#8,

I have described theways nowbestown to me forcarrying out my invention;but I Wish it understoodthat the steps ofthe rocess herein described maybe-varied and t econstruction ofthe float may be changed without`departing from. my invention.

While Iv prefer to coat the inside-'ofthe float-sections, I findl'that-this is not absolutely necessary. Other-kinds of-jointe for IOCy 'shown and described, and t e vent for the float may be constructed orlocated in various Ways,.those shown and described, however, beingreferred. As before stated, when the enameing process is completed theeyelet E -or the Vpassage f is closed watertight in any suitable waeither by ascrew e or G or other suitab e means. In place of the eyeletthe loat may bemerely reinforced and a vent-hole formed in thereinforced portion.

I claim as my invention-` 1.- A float comprising two sections enameledon'both the inside'and outside, joined together and then covered withanother coat of enamel. l l

2. A float comprising two sections, first enameled on the inside, thenjoined together, then covered on Athe outside with enamel, and thencoated with a secondn covering of enamel.

3. A 4float comprising two sections joined together, com letely covered'on the outside by an enamei) fiuxmg at` a. relatively high tem eratureand then covered .with an enamev 'fluxing at a lower temperature thanthat rst employed.

4,.A `ioat made in two sections which voverlap each other and providedwith an annular recess or gutter, x, and a coating 'of enamel closingthe joint, lling said recess nd also covering the entire outside of theoat.

`5. A fioat made in two sections joined together and having the' jointhermetically sealed b enamel, one of which sections 1s providedy with aclosed vent and said fioat be-A ing covered throughout its entireexterior with a coating of vitreous enamel.

6. A float comprising two sections to one ssA of which a socket for thevalve-rod is secured and'which is covered on the inside over the` jointof the socket with the Heat-section by an enamel fluxing at a relativelyhi h temperatufre and acoating of enamel uxing at aower temperatureapplied to the outside o f the float.

7. The herein-described rocess which consists in bringing together t evtwo parts of a float, closing the joint of the two arts with anenameling composition, firing t e float to produce the enamel,l andsimultaneously allowing the expanded escape therethrough.

In testimony whereof I have hereunto subscribed my name.

Witnesses:

LLOYD B. WIGHT, KARL FENNING.

air within the ioat to ss CHARLES WILLMs.. j

